Home / 31,893.11-47,840.12-11,116.61

Finding the Fourth Proportional to 31,893.11, 47,840.12 and 11,116.61

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Solution

The fourth proportional to 31,893.11, 47,840.12 and 11,116.61 is: 16,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,893.11 : 47,840.12 = 11,116.61 : x
  2. Step 2: Convert to fraction form
    31,893.11/47,840.12 = 11,116.61/x
  3. Step 3: Cross multiply
    31,893.11x = 47,840.12 × 11,116.61
  4. Step 4: Simplify right side
    31,893.11x = 531,819,882.70
  5. Step 5: Solve for x
    x = 531,819,882.70/31,893.11
  6. Step 6: Final answer
    x = 16,675.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.